Churn.



N0. 637,0!4. Patented Nov. l4, I899. J. B. NEUENDUBFF.

CHURN.

. (Application filed June 4, 1898.) '(No Model.) 2 SheetsSheet l.

No. 637,0l4. Patented Nov. I4, I899. -J. B. NEUENDORFF.

CHURN.

(Application filed Juup 4 1898.) (No Model.) '2 SheetsSheet 2,

n4: Nonms PETERS co. wonxumu. WASHINGYON- u. c.

NITED STATES PATENT. OFFICE.

JOHN B. NEUENDORFF, OF SAN ANTONIO, TEXAS.

CHURN.

SPECIFICATION forming part of Letters Patent No. 637,014, dated November14,1899. Application filed lTune 4,1898. Serial No. 682,556. (NomodeL)To otZZ whom it may concern:

Be it known that 1, JOHN B. NEUENDORFF, a citizen of the United States,residing at San Antonio, in the county of Bexar and State of Texas,haveinven ted a new and useful Churn, of which the following is aspecification.

My invention relates to churns, and has for its object to provide asimple construction and arrangement of operating parts whereby motionmay be communicated to the dasher without the use of cog-gearin g orbelting, and in connection therewith to provide suitable adjustingdevices for securing an operative relation between the members.

A further object of the invention is to provide a simple and efficientconstruction of dasher adapted for rotation in either direction andcapable of producing an efficient vacuum to be supplied by air admittedthrough the dasher-shaft; and a further object in view is to provide asim ple and efficient construction of guard or splasher-plate designedto serve as a means of preventing exterior objects from falling into thecontents of the receptacle, and to prevent splashing of such contentsduring the operation of the dasher.

Further objects and advantages of this in-.

vention will appear in the following description, and the novel featuresthereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective View of a churn mechanismconstructed in accordance with my invention. Fig.2 is a central verticalsectional view of the same. Fig. 3 is a detail View in perspective ofthe driving-wheel end of the supporting-bar. Fig.

4 is a detail view in perspective of the dasher. Fig. 5 is an edge viewof a slightly-modified construction of dasher. Fig. 6 is a detail Viewof the guard or splasher-plate detached.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

Applied to the wall of a receptacle 1, of any suitable size andconstruction, are seats 2 and 3, preferably formed upon securing-plates2 and 3 which are riveted or otherwise securely fastened to thereceptacle-wall, said seats being open at their outer sides and at theirupper ends to receive the downturned exreceptacle.

tremities 4 and 5 of a bearing-bar dwhich transversely spans thereceptacle, said bear ing-bar thus being detachably fitted upon the Saidbearing-bar is also prefer ably provided with fastening devices which inthe construction illustrated consist of a horizontally-swinging latch 7,mounted for horizontal movement and adapted to engage notched extensions8 on the seat 2, said latch having a segmental engaging face provided atan intermediate point with a notch 9 to enable the latch to be arrangedin operative relation with the ears 8 without swinging the latch farenough to carry the free end of its segmental face beyond the intervalbetween said ears, and a latch 10, pivotally mounted for swingingmovement in a Vertical plane upon the downturned extremity 5 of thebearing-bar for engagement with a stud 11, projecting perpendicularlyfrom the floor of the seat 3, said extension or earobeing verticallyslotted, as shown at 5 to receive the stud 11.

The rear extension or ear 5is carried below the plane of the seat 3 toform a bearing-plate 12, having an opening 13, in which is arranged astub-shaft 14 for the driving-wheel 15, said stub-shaft being held inplace by nuts 16 and 1 6, threaded upon the shaft and bearing againstopposite sides of the bearing-plate 12, and in practice I preferablyelongate the opening 13 vertically to provide for the verticaladjustment of the stub-shaftlor the adjustment thereof toward and fromthe plane of the bearing-bar, for a purpose hereinafter explained. Thedriving-wheel is provided with a friction-rim for contact with thepreferablybeveled periphery of a friction-pulley 17, carried bya drivenor counter shaft 18, mounted in bearings 19 upon a bracket 20, supportedby the bearing-bar. In the construction illustrated this bracket isprovided at its lower inner end with a pivot consisting of trunnions 21,fitted in bearing-ears 22, rising from the.

bearing-bar 6, and the outerupperend of the bracket is arranged in aguide formed by the adjacent spaced ends of uprights 23, also risingfrom the bearing-bar contiguous to the depending extremity 5. Concentricwith the pivot 21 of the bracket the latter is provided with a slot 24,through which extends a setscrew 25, connecting the sides of the guideformed by the uprights 23, said sides or walls of the guide beingunconnected at their upper ends, and hence being adapted to yieldlaterally or toward and from the plane of the bearing-bracket, wherebywhen the set-screw is tightened the faces of the guide may be broughtinto tight frictional contact with opposite surfaces of the bracket tolock the latter at the desired adjustment. The object of this adjustmentof the outer or free end of the bracket is to vary the frictionalcontact of the pulley 17 with the rim of the driving-wheel, and in orderthat a nice adjustment of the pulley may be attained I preferablyemployan adjusting mechanism including a plate-spring 26, connected at itsfree end by a link 27 with the free end of the bracket 20, and aset-screwQS, connected with the spring at an intermediate point fordrawing the free end thereof down to resist the upward movement of thefriction-pulley to a greater or less extent. It is obvious that theset-screw may be allowed to remain loose to give a freedom of movementof the bracket in opposition to the tension of said platespring toenable the friction-pulley to yield to inequalities in the bearing-rimof the driving-wheel.

The construction of the friction-pulleyembodies a body portion offriction material, such as leather or rubber, interposed between bearingplates or disks 29 and held in place by means of nuts 30.

The counter-shaft is operatively connected with a dasher-shaft 31 bymeans of a universal joint 32, said dasher-shaft being mounted in acentral vertical bearing in the bearingbar, and said dasher-shaft isprovided with a cross-pin 33 for engagement with opposite registeringslots 34 in the upper end of the tubular dasher-staff 35, of which thelower end is mounted upon a bearing-pin 36, rising from a bearing-block37 at the center of the bottom of the receptacle 1. The dasher-staffconsists of a stem and a separate socketplug 38, fitted in the upper endof the stem and having an upper socket portion closed at its bottom andprovided with the abovedescribed slots 34, and also having below saidsocket portion a plurality of inlet-ports 39, communicating with thebottom of the stem.

The dasher consists of a horizontal disk 40, provided with upstruekinclined deflectingears 41 and 42, extending, respectively, upwardly anddownwardly from the disk contiguous to openings 43 formed in the disk,(said ears consisting of the portions of the disk cut out at three sidesof the opening,) and guard-disks 44 and 45, arranged, respectively,above and below and spaced from the plane of the blade-disk 40 andsecured, respectively, to the upturned and downturncd ears or blades 41and 42, said guard-disks being imperforate and being of smaller diameterthan the blade-disk, as clearly shown in the drawings. Also thedasher-stem is provided,respectively,above and below the plane of theblade-disk and between the plane of said blade-disk and the planesrespectively of the guard-disks with outlet openings or ports 46. j

In the construction illustrated in Figs. 2 and 4 the ears or blades 41and 42, which extend, respectively, upwardlyand downwardly from theplane of the blade-disk, inclined in op,- posite directions-namely,rearwardly and forwardlytoward their free ends, whereby when the dasheris rotated in one direction the upper blades deflect the liquid upwardlyto create a partial vacuum, which is supplied by air admitted throughthe upper series of outlet openings or ports. lVhile thelower bladesdeflect the liquid upwardly through the openings 43 to create a partialvacuum below the plane of the blade-disk forsupply by the lower seriesof outlet-ports, the rotary motion of the dasher in the oppositedirection, on the other hand, reverses this operation by causing theupper blades 41 to deflect the liquid downwardly through the openings 43to create a partial vacuum above the blade-disk, while the lower bladesdeflect the liquid downwardly to produce a similar partial vacuum belowthe plane of the blade.

In the modified construction of dasherillustrated in Fig. 5 the upperand lower series of blades 41 and 42 incline in a common direction orrearwardl y from the plane of the bladedisk 40 to deflect the liquid inopposite directions from the plane of the disk when the dasher isrotated in one direction or to respectively deflect the liquid throughthe openings 43 when the dasher is rotated in the opposite direction.The upper and lowerguard-disks 44 and 45 are constructed and arrangedsubstantially as described in connection with the preferred form ofdasher.

Fitted snugly iu the receptacle above the plane of the dasherand havinga central opening 47 through which the dasher-stem extends is a guard orsplasher-plate 48, suitably supported, as by means of upwardly-extendinghooks 49, engaged with the upper edge of the receptacle-wall.Thisguardorsplasher-plate is arched toward its center to cause liquidfinding its way to the upper surface thereof to flow back into thereceptacle between its periphery and the inner surface of the wall ofthe receptacle, and in order that air admitted to the contents of thechurn through the tubular stem may find its escape the guard orsplashenplate is provided near its center with a series of exhaust-ports50. Depending from the under surface of the guard or splasherplate is aseries of cross-sectionally V-shaped deflectors 51, tapered in plan anddisposed radially, the function of said deflectors being to cause theconcentration of the whirling contents of the churn-receptacle towardthe center, and thus prevent the forcing of the liquid unnecessarily tothe upper surface of the guard or splasher-plate.

In the preferred construction the guarddisks 44 and 45 are detachablymounted upon the dasher-stem in contact with those edges of the dasherblades or ears which are remote from the plane of the blade-disk and areheld in place by means of split keys 52, engaged with transverseopenings in the dasher-stem.

From the above description it will be seen that the parts of theapparatus may be readily adjusted to secure the desired frictionalcontact between the pulley and driving-wheel and that the communicationof motion from the driving member to the dasher is accomplished withoutthe use of gears or belting, whereby the weight of the apparatus isreduced, and the communication of motion is accomplished with theminimum loss of energy by friction. Furthermore, it will be seen thatthe parts may be readily assembled and that the same being detachablewith equal facility may be thoroughly cleansed to main: tain those partswhich enter the contents of the churn in a hygienic condition.

While I have shown and described frictiongearing for communicatingmotion from the drive-wheel to the dasher-spindle', it will beunderstood that I do not desire to be limited strictly to this form ofgearing, as others well known in the art may be substituted therefor,and that various other changes in the form, proportion, and the minordetails of construction may be resorted to Without departing from thespirit or sacrificing any of the advantages of this invention.

Having described my invention what I claim isl. Ohurn-dasher-operatingmechanism having a dasher-staft', a driving-wheel, a pulley inperipheral engagement with the rim of the driving-wheel,means connectedwith the shaft of the pulley for engagement with the dasherstaff, apivotal bearing-bracket uponwhich the shaft of the pulley is mounted, alaterallycontractible guide in which the bracket operates, and means forcontracting the guide to clamp the bearing-bracket in its adjustedposition, substantially as specified.

2. Ohurn-dasher-operating mechanism having a dasher-staff, adrivingwheel, a pulley in peripheral engagement with said drivingwheel,means connected with the shaft of the pulley for engagement with thedasher-staff, an angularly-adjustable bearing-bracket upon which theshaft of the friction -pulley is mounted, a tension-spring connectedwith the bracket for moving the same to hold the pulley in engagementwith the rim of the driving-wheel, and locking devices for securing thebracket at the desired adjustment, substantially as specified.

3. Ohurn-dasher-operating mechanism having a driving-wheel provided witha frictionrim, a friction-pulley for peripheral contact with saidfriction-rim, means connected with the shaft of the f riction-pulley forengagement with a dasher-staff, a pivotal bearing-bracket upon which theshaft of the friction-pulley is mounted, a laterally-con tractible guidehaving cheeks between which said bracket operates, and means forcontracting the guide to clamp the bearing-bracket in its adjustedpositions, substantially as specified.

4t. Churn-dasher-operating mechanism having a driving-wheel providedwith a frictionrim, a friction-pulley for peripheral contact with saidfriction-rim, means connected with the shaft of the friction-pulley forengagement with a dasher-staif, a pivotal bearing-bracket upon which theshaft of the friction-pulley is mounted, a transversely-contractibleguide in which the free end of said bracket is mounted, the sameconsisting of uprights having contiguous friction-faces for contact withopposite sides of the bearing-bracket, and a setscrew connecting saiduprights, substantially as specified.

5. Ohurn-dasher-operating mechanism having a drivingwvheelprovided witha frictionrim, a friction-pulley for peripheral contact with said friction-rim, means connected with the shaft of the friction-pulley forengagement with a dasher-staff, a pivotal an gularlyadjustablebearing-bracket having bearings in which the shaft of thefriction-pulley is mounted, a tension-sprin g connected with the bracketfor moving the same to hold the friction-pulley in contact with the rimof the driving-wheel, means for adjusting the tension of said spring,and locking devices for securing the bracket at the desired adjustmentsubstantially as specified.

6. Churn-dasher-operating mechanism having a driving-wheel provided witha frictionrim, a friction-pulley for peripheral contact with saidfriction-rim, means connected with the shaft of the friction-pulley forengagement with a dasher-staff, a pivotal bearingbracket upon which theshaft of the frictionpulley is mounted, a plate-spring connected at itsfree end with the bearing-bracket, a set-screw engaged with the springto vary the tension thereof, and locking devices for securing thebracket at the desired adjustment substantially as specified.

7. The combination with a churn-receptacle, of diametrically oppositeseats on the wall of the receptacle, a bearing-bracket provided withdownturned extremities fitted in said seats, a swinging segmental-edgedlatch 7 mounted upon the bearing-bar near one end for engagement withnotched ears 8 on one of the seats, a pivotal latch 10 mounted upon thebearing-bar at the other end for engagement with a stud ll projectingfrom the contiguous seat and through a slot in the bearing-bar, adriving-wheel mounted upon a stub-shaft carried by a pendent portion ofone of the extremities of said bearing-bar, and means for communicatingmotion from the driving-wheel to a dasher-stafl", substantially asspecified.

8. The combination with a churn-receptacle, a dasher, anddasher-operating mechanism, of a stationary guard or splasher-platearranged transversely in the receptacle, and

provided upon its under surface with deflectors having their sidesinclined to vertical and horizontal planes, substantially as specified.

9. The combination with a churn-receptacle, a dasher, anddasher-operating mechanism, of a stationary guard or splasher-platearranged transversely in the receptacle, and provided upon its undersurface with radially-disposed cross-sectionally V-shaped deflectorstapered toward their inner ends, substantially as specified.

as specified.

12. A rotary churu-dasher having a rotary blade-disk provided withupstruck ears or blades inclining alternately upward and downward inopposite directions from the plane of the disk, and upper and lowerguarddisks spaced from-the plane of the blade-disk and arranged incontact with those edges of said ears or blades which are remote fromthe blade-disk, all of said disks being carried by a tubular stem havingan air-inlet port and provided contiguous to the plane of the blade-diskwith ontlet-openings,substantially as specified.

13. A rotary churn-dasher having a bladedisk provided with upstruck earsor blades deflected alternately upward and downward from the plane ofthe disk, an air-conveying tubular stem carrying said blade-disk andprovided contiguous to and above and below the plane thereof withoutlet-ports, guarddisks arranged respectively above and below theplaneof the blade-disk, in contact with the free edges of said ears orblades, the outlet-ports of the stem being arranged between the plane ofthe blade-disk and the planes of the guard-disks, respectively, and keysengaged with the dasher-stem to secure said guard-disks in place,substantially as specified.

14. The combination with a churn-receptacle, a dasher, anddasher-operating mechanism, of a circular series of pendentplane-surfaced defiectors, arranged within the churnreceptacle, andhaving their sides inclined to vertical and horizontal planes,substantially as specified.

15. The combination with a churn-receptacle, a dasher, anddasher-operating mechanism, of a circular series of pendent,radiallydisposed, cross-sectionally V- shaped deflectors tapered towardtheir inner ends, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixedmysignature in the presence of two witnesses.

JOHN B. NEUENDORFF.

Witnesses:

MAX J UREZA, E. R. LEAL.

